title: Synthesis of functionalized tetracyanocyclopentadienides from tetracyanothiophene and sulfones.
abstract: Tetracyanothiophene and tetracyano-1,4-dithiin react with a leaving group substituted carbon nucleophile such as ethyl benzenesulfonylacetate to afford substituted tetracyanocyclopentadienyl sodium derivatives in moderate to high yields through a putative condensation and desulfurization pathway. Subsequent functional-group transformation reactions on the Cp anion ring provided various C5R(CN)4(-) derivatives.
authors.affiliation: Faculty of Pharmacy, Meijo University , Tempaku-ku, Nagoya 468-8503, Japan.
authors.forename: Takeo
authors.initials: T
authors.lastname: Sakai
authors.forename: Shohei
authors.initials: S
authors.lastname: Seo
authors.forename: Junpei
authors.initials: J
authors.lastname: Matsuoka
authors.forename: Yuji
authors.initials: Y
authors.lastname: Mori
mesh_terms: D003517:Cyclopentanes / Q000138:chemical synthesis* / Q000737:chemistry*; D015394:Molecular Structure; D009570:Nitriles / Q000138:chemical synthesis* / Q000737:chemistry*; D013450:Sulfones / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D003517:Cyclopentanes; D009570:Nitriles; D013450:Sulfones; D013876:Thiophenes